@article {78,
	title = {Ammonia in the environment: From ancient times to the present},
	journal = {Environmental Pollution},
	volume = {156},
	year = {2008},
	pages = {583-604},
	abstract = {Recent research on atmospheric ammonia has made good progress in quantifying sources/sinks and
environmental impacts. This paper reviews the achievements and places them in their historical context.
It considers the role of ammonia in the development of agricultural science and air chemistry, showing
how these arose out of foundations in 18th century chemistry and medieval alchemy, and then identifies
the original environmental sources from which the ancients obtained ammonia. Ammonia is revealed as
a compound of key human interest through the centuries, with a central role played by sal ammoniac in
alchemy and the emergence of modern science. The review highlights how recent environmental
research has emphasized volatilization sources of ammonia. Conversely, the historical records emphasize
the role of high-temperature sources, including dung burning, coal burning, naturally burning coal seams
and volcanoes. Present estimates of ammonia emissions from these sources are based on few
measurements, which should be a future priority.},
	keywords = {Air chemistry, Alchemy, Deposition, Emissions, EPNB, NH3 sal ammoniac, Nushadir},
	author = {Mark A. Sutton and Jan Willem Erisman and Frank Dentener and Detlev M{\"o}ller}
}
@inbook {Leip2011d,
	title = {{Integrating nitrogen fluxes at the European scale}},
	booktitle = {European Nitrogen Assessment},
	year = {2011},
	pages = {345{\textendash}376},
	publisher = {Cambridge University Press},
	organization = {Cambridge University Press},
	chapter = {16},
	address = {Cambridge, UK},
	keywords = {mypublications},
	url = {http://www.nine-esf.org/ENA-Book},
	author = {Leip, Adrian and Achermann, Beat and Billen, Gilles and Bleeker, Albert and Bouwman, Alexander F and De Vries, Wim and Dragosits, Ulli and D{\"o}ring, Ulrike and Fernall, Dave and Geupel, Markus and Heldstab, J{\"u}rg and Johnes, Penny and Le Gall, Anne Christine and Monni, Suvi and Neve{\v c}e{\v r}al, Rostislav and Orlandini, Lorenzo and Prud{\textquoteright}homme, Michel and Reuter, Hannes I and Simpson, David and Seufert, G{\"u}nther and Spranger, Till and Sutton, Mark A. and van Aardenne, John and Vo{\ss}, Maren and Winiwarter, Wilfried},
	editor = {Sutton, Mark and Howard, Clare and Erisman, Jan Willem and Billen, Gilles and Bleeker, Albert and van Grinsven, Hans and Grennfelt, Peringe and Grizzetti, Bruna}
}
@article {Sutton2011a,
	title = {{Too much of a good thing.}},
	journal = {Nature},
	volume = {472},
	number = {7342},
	year = {2011},
	month = {apr},
	pages = {159{\textendash}61},
	keywords = {agriculture, Agriculture: economics, Animals, Biodiversity, Climate Change, Cost-Benefit Analysis, Diet, Environmental Pollution, Environmental Pollution: adverse effects, Environmental Pollution: analysis, Environmental Pollution: economics, Environmental Pollution: statistics {\&} numerical da, Fertilizers, Fertilizers: analysis, Food Supply, Fossil Fuels, Humans, International Cooperation, Meat, Meat: utilization, nitrogen, Nitrogen Fixation, Nitrogen: adverse effects, Nitrogen: analysis, Nitrogen: economics, Nitrogen: metabolism, Reactive Nitrogen Species, Reactive Nitrogen Species: adverse effects, Reactive Nitrogen Species: analysis, Reactive Nitrogen Species: chemistry, Reactive Nitrogen Species: metabolism},
	issn = {1476-4687},
	doi = {10.1038/472159a},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/21478874},
	author = {Sutton, Mark A. and Oenema, Oene and Erisman, Jan Willem and Leip, Adrian and van Grinsven, Hans and Winiwarter, Wilfried}
}
@article {Vanham2019a,
	title = {{Environmental footprint family to address local to planetary sustainability and deliver on the SDGs}},
	journal = {Science of The Total Environment},
	volume = {693},
	number = {June},
	year = {2019},
	month = {jul},
	pages = {133642},
	publisher = {Elsevier B.V},
	abstract = {The number of publications on environmental footprint indicators has been growing rapidly, but with limited efforts to integrate different footprints into a coherent framework. Such integration is important for comprehensive understanding of environmental issues, policy formulation and assessment of trade-offs between different environmental concerns. Here, we systematize published footprint studies and define a family of footprints that can be used for the assessment of environmental sustainability. We identify overlaps between different footprints and analyse how they relate to the nine planetary boundaries and visualize the crucial information they provide for local and planetary sustainability. In addition, we assess how the footprint family delivers on measuring progress towards Sustainable Development Goals (SDGs), considering its ability to quantify environmental pressures along the supply chain and relating them to the water-energy-food-ecosystem (WEFE) nexus and ecosystem services. We argue that the footprint family is a flexible framework where particular members can be included or excluded according to the context or area of concern. Our paper is based upon a recent workshop bringing together global leading experts on existing environmental footprint indicators.},
	keywords = {Environmental footprint, Environmental footprint assessment, Family, Footprint, Footprint family, Planetary boundaries},
	issn = {00489697},
	doi = {10.1016/j.scitotenv.2019.133642},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0048969719335673 https://doi.org/10.1016/j.scitotenv.2019.133642},
	author = {Vanham, Davy and Leip, Adrian and Galli, Alessandro and Kastner, Thomas and Bruckner, Martin and Uwizeye, Aimable and van Dijk, Kimo and Ercin, Ertug and Dalin, Carole and Brand{\~a}o, Miguel and Bastianoni, Simone and Fang, Kai and Leach, Allison M. and Chapagain, Ashok and Van der Velde, Marijn and Sala, Serenella and Pant, Rana and Mancini, Lucia and Monforti-Ferrario, Fabio and Carmona-Garcia, Gema and Marques, Alexandra and Weiss, Franz and Hoekstra, Arjen Y.}
}
@article {Uwizeye2020,
	title = {{Nitrogen emissions along global livestock supply chains}},
	journal = {Nature Food},
	year = {2020},
	month = {jul},
	issn = {2662-1355},
	doi = {10.1038/s43016-020-0113-y},
	url = {http://www.nature.com/articles/s43016-020-0113-y https://github.com/uaimable/Global{\_}Nitrogen{\_}assessment},
	author = {Uwizeye, Aimable and de Boer, Imke J. M. and Opio, Carolyn I and Schulte, Rogier P O and Falcucci, Alessandra and Tempio, Giuseppe and Teillard, F{\'e}lix and Casu, Flavia and Rulli, Monica and Galloway, James N and Leip, Adrian and Erisman, Jan Willem and Robinson, Timothy P and Steinfeld, Henning and Gerber, Pierre J}
}
